Dolf charouzek



(No Model.) 2 Sheets-Sheet 1. C. SGHLIMP SLR. CHAROUZBK. HYDRAULIC PRESS. No.. 573,710. Patented Dec. Z2, 1896.

liI

(No Model.)

2 Sheets-Sheet 2.

G. SGHLIMP & RGHAROUZBL HYDRAULIC PRESS. Y

lNo. 573,710. Patented Dec. 22, 1896.

UNITED STATEs` PATENT OFFICE.

CARI. SCIILIMP, OF VIENNA, AUSTRIA-HUN GARY, AND RUDOLF CI-IAROUZEK, OF NIEDERSEDLI'IZ, NEAR DRESDEN, GERMANY.

HYDRAULIC PRESS.

SPECIFICATION' forming part of Letters Patent No. 573,710, dated December 22, 1896.

Application iiled August 17, 1896. Serial No. 603,052. (No model.)

To all whom. t nuty concern:

Beit known that we, CARL SCHLIMP, a resident of Vienna, Austria-Hungary, and RU- DOLE CHAROUZEK, a resident'of Niedersedlitz, near Dresden, Germany, subjects of the Emperor of Austria-Hungary, have invented certain new and useful Improvements in IIydraulic Presses, of which the following is a specification.

Our invention relates to hydraulic presses for dry materials, its object being to improve and to simplify its operation.

In the accompanying drawings, Figure l represents a fragmentary View of the improved press, with parts shown in section. Fig. 2 is a plan showing diagrammatically the arrangement of valves and pipe connections and accessory parts. Fig. 3 is a vertical section of the delivery-press. Figs. 4 and 5 are sections on the lines E F and GH, Fig. 2, respectively. Fig. G is a diagram showing the pipe connections.

I is the first or preliminary hydraulic press. II is the main press, and III is the deliverypress. X is the intermittently-revolvin g platform with the equidistant forms or molds XI. The presses I II III are arranged the same distance apart as the forms or molds, so that when one mold is under the press I another mold is under the main press and a third mold is under the delivery-press III.

The Jfirst press is provided with a main plunger d and with a small plunger b in the upper cross-head. This small plunger serves to raise the forms or molds up to the upper cross-head by means of a plate c and hooked rods d, thereby closing the top of the mold. The bottom of the upper cross-head of the delivery-press III is provided with stops e, coming against and stopping the mold while the pressed material is forced out of the mold by means of the plunger f and the plungerhead, Fig. 3.

The water-tubes from the low-pressure accumulator V and the high-pressure accumulator VI lead to a valve-box VIII, the admission of the water under pressure and the escape of the water being controlled therein by valve-levers h and fi. From the valve-box VIII the connecting-tubes lead to the various presses. The accumulators V and VI are loaded to correspond to the requisite pressures.

For the sake of clearnes's, in the drawings the valve-box VIII is shown separated in Fig. 6. y

The operation of the valves in the box VIII is as follows: By raising the lever h the valve k is opened, while valve Z is closed and lowpressure water is admitted to the various presses. When, however, the lever h is at rest, as shown in Fig. 4, the valve k is closed and the valve lis open, and the water is allowed to escape from the various presses to the pump IV bythe escape-pipes. (Indicated by full lines.) When the lever 'L' is raised, high-pressure water is admitted to the main press II, and escapes, after having done its work, together with the other escape-water, into the escape-pipes.

The mechanism for imparting an intermittent revolving motion to the platform X consists of two hydraulic cylinders m n, having a common plunger o, provided with a projecting cross-bar j), engaging at one end with a slide q and at the other into a slottedA arm r, pivoted at the center of the circular platform X. The lever r cooperates with Ateeth s of the circular platform X. The slide q is provided with a roller acting against an incline on the lever z' of the valve-casing VIII when the plunger o moves from the cylinder m to the cylinder n. The lever his acted upon by a plunger t and is raised thereby when water under pressure is admitted under such plunger.

rIhe fluid may be exhausted from the cylinderm when liquid-pressure is admitted into cylinder n, and vice versa, in the following way:-The cylinders m. and n are provided with the valves 'y and y', respectively, and attached to the piston-rod o are two valverods a," and having projections z a and .z2 and z3, respectively. Between these projections the rods engage the arms of the valves, so that when pressure is admitted to n, the valve y being closed and the valve y open, the rod o moves to the left in Fig. 6, and when about at the end of the stroke the projection 2 on rod closes valve y and projection z3 on rod 0c opens valve y', and when the rod o IOO starts on its backward stroke and reaches the end of that stroke the opening and closing of the valves is reversed, that is, valve q/ is opened and y closed. Itis obvious, however, that any simple and efficient means may be employed for exhausting Huid from the cylinders.

The valve-box IX, from which the action of the whole press is controlled, receives its water under pressure from the accumulator VII, which is connected to this valve-box only, while the accumulators V and VI furnish water under pressure to the various presses.

In Fig. 2 of the drawings the pipe connections are indicated by lines of different character for the sake of clearness, the pipes themselves being shown in Fig. 6. The pipes from the low-presure accumulator V are indicated by dotted lines, the pipes from the high-pressure accumulator VI are indicated by dot-anddash lines, those from the accumulator VII by dash-lines, and the escape-pipes are indicated by full lines. The accumulators receive their water from the pump IV.

The operation of the press is as follows: Let the valve u of the valve-box IX be opened, as shown in Figs. 2 and 6. The water from the accumulator VII iiows through the box IX to the cylinder n and drives the plunger o into the cylinder m. The bolt p moves the lever r, which, by acting against the tooth s,

moves the platform X, together with the molds XI upon the same, through the distance between two adjacent molds. Now when the valve r of the valve-box IX is opened the water from the accumulator VII enters below the plunger b in the upper cross-head of the first press I. At the same time water under pressure enters below the plunger 1f and behind the plunger o into the cylinder m. By these means, first, the mold is raised against the upper cross-head of the Iirst press I and is thereby closed; secondly, the lever 71- is raised by the plunger t, and, thirdly, the plunger o is moved back into the cylinder n. By lifting the lever 7L water under pressure is admitted from the accumulator V to the cylinder of the press I and also to the cylinder of the main press for the first part of the main pressing, and further to the cylinder of the delivery-press III, where the material already pressed is pushed out from the mold. After the plunger o has moved from the starting-point for a certain distance the slide q raises the lever 'L' by coming into contact with its incline, as shown in Figs. 5 and (3, and thereby admits high-pressure water from the accumulator VI into the press II. The pressing is thus completed. At the same time the arm o' is brought back into the normal position. The parts are then ready for a new operation.

Instead of controlling the valve-box VIII, the valves 7a Z, and the plungers m and fn by the valve-gear IX they may be controlled by separate mechanisms.

IVe claiml. The combination with a revolving platpress adapted to further compress said molds,

a third hydraulic press adapted to deliver said molds from said platform,a series of accumulators, pipes connecting said accumulators with said presses, valves for controlling the flow of the iiuid in said pipes, and means for rotating said platform through fixed distances, substantially as described. p

2. The combination with a revolving platform, of molds carried by said platform, a hydraulic press having a supplementary chamber and plunger for raising said molds and a main chamber and plunger for compressing said molds, a second hydraulic press adapted to further compress said molds, a third hydraulic press adapted to deliver said molds from said platform, a series of accumulators, pipes connecting said accumulators with said presses, valves for controlling the iiow of the iiuid in said pipes, a pair of cylinders having reciprocating pistons, a rod connecting the said pistons, a pivoted arm connected to said rod, a plurality of projections on said platform adapted to engage said pivoted arm and pipes connecting said cylinders with the aforesaid valves and accumulators, substantially as described.

3. In a system of hydraulic presses,the combination with a revolving platform, of molds carried by the said platform, a hydraulic press having a supplementary chamber and plunger with arms for raising and closing the said molds and a main chamber and plunger for compressing said molds, a second hydraulic press for further compressing said molds, a third hydraulic press adapted to deliver said molds from said platform, a series of accumulators, pipes connecting said accumulators with said presses, valves for controlling the iiow of the fluid in said pipes, a pair of cylinders having reciprocating pistons, a rod connectin g said pistons, a pivoted arm connected to said rod, a plurality of projections on the said platform adapted to engage said pivoted arm, a second arm connected to said pistonrod, a valve adapted to be opened by said arm, high-pressure pipes connecting said valve with said second press, and pipes and valves connecting said cylinders with said accumulators, substantially as described.

Il. In a system of hydraulic presses,the com bination with a circular revolving platform, of molds carried by the said platform, a hydraulic press having a supplementary chamber and plunger with arms for raising and closing the molds and a main chamber and plunger for compressing the' said molds, a second hydraulic press for further compressing said molds, a third hydraulic press adapted to deliver said molds from said platform, a

series of accumulators containing a fluid at different stages of compression, pipes con- IOO IIO

adapted to pump fluid under pressure into said aceumulators, substantially as described. 15

In testimony whereof We have afxed our signatures in presence of two Witnesses.

CARL SCHLIMP. RUDOLF CHAROUZEK.

Titnesses as to Carl Sehlimp:

HARRY BELMONT, HANS ZORNLEY.

lVitnesses as to Rudolf Charouzek:

HERNANDO DE SOTO, PAUL ARRAS. 

